Passenger body ventilator



March 26, 1946. M. G; MANN 2,397,282 PASSENGER BIO/DY vVENTIILATOR Filed Feb. 11. 1944 2 sheets-shear March 26, 1946.

M. G. MANN PASSENGER BODY VENTILATOR 1944 2 Sheets-Sheet 2 Filed Feb. 1l

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Patented Mar. 26, 1946 UNITED STATES PATENT OFFICE PASSENGER BODY VENTILATOR:

Marion G. Mann, Horseheads, N. Y'. Application February 11, 1944., serial No, 521,994

3 Claims.

This invention relates to a ventilator for the interior of passenger bodies on self-propelled vehicles or any equivalent, such as automobiles, truck cabs, buses, aircraft, and boats.

It is a particular object to provide a means which avoids the use of an opening adjacent the front of the body and in which the air is extracted from the interior of the vehicle by a venturi action as the vehicle travels.

Another object is to provide for the discharge of the air over the rear window of the vehicle body in order to defrost the same.

It is also aimed to provide, especially for use in extremely cold weather, a removable supplementary window which is disposable over the rear window of the vehicle and which includes a slit or means for the escape ofthe air.

Still further, it is aimed to provide a constructionhaving a closure or damper means which will loe automatically closed in the event lof backing of the vehicle.

The more specic objects and advantages will become apparent from a consideration of the description following taken in connection with the accompanying drawings illustrating an operative embodiment:

In said drawings:

Figure 1 is a plan view fragmentarily showing top of an automobile or other self-propelled vehicle equipped with my improvement;

Figure 2 is a central longitudinal sectional view on an enlarged scale taken on the line 2--2 of Figure 1;

Figure 3 is a cross sectional view taken on the line 3--3 of Figure 2;

Figure 4 is a cross sectional View taken on the line 4-4 of Figure 2;

Figure 5 is a detail section taken on the line 5-5 of Figure 2;

Figure 6 is a longitudinal section similar to Figure 2 but through a modied form;

Figure l is a cross section taken on the line 11 of Figure l;

Figure 8 is a fragmentary enlarged section taken vertically and longitudinally of the vehicle, showing a damper as pivotally mounted; and

Figure 9 is a view similar to Figure 8 showing a modied form of pivotally mounted damper.

Referring specifically to the drawings wherein like reference characters designate like or similar parts, I designates the wall of a body of a vehicle of the type set forth, for example being that of an automobile, particularly a fragment of the top and rear portions thereof, the same generally curving rearwardly and downwardly and having Aa rear glasswindow or light mounted 'therein at II. The body of which the wall Ill forms a part usually is a passenger compartment although. no limitation in this respect is to be inferred.

In carrying out the invention, I provide a relatively shallow hollow casing at I2 which may be made of any suitable material, for instance plastic, wood, or metal. This casing I2 is mounted in the wall I0 and has a forward curved wall 10 at I3 extending below its bottom and into the interior of the body.

Immediately behind the curved Wall I3 is an entrance slot I4 for air, the wall I0 being cut away or slotted so as not to obstruct said opening I4. Baflles I5 are located interiorly of the casing or ventilator I2 and at the rear end of such casing are therein a plurality of discharge tubes I6 which may be iiatter at their rear ends as in Figure 4 than at the forward ends as in Figure 5. In addition, tubes are preferably tapered so that a better Venturi action Will be created when the vehicle is in motion, aided by the air following the outer surface of the wall I0, to draw the air through the opening 0r slot I4,

thence through the ventilator, and discharge it onto the rear light or glass I I. It will be realized that such air will be warmer than the outside or atmospheric air and hence it will function to defrost the window II in cold Weather.

In parallelism to the light or glass II, in cold Weather, I use a supplemental removable light or glass I6 having an escape slot I1 therethrough adjacent its lower edge. It will be seen that the supplemental light I6 is secured in place in spaced relation to the light Il, being entered at its lower edge in a longitudinally extending groove I8 in the wall III. This supplemental light I6 intimately fits the window frame and at its upper edge has a plurality of latches I9 pivoted thereto and adapted to be moved into or out of tapered slots or notches 20 in the window frame portion of the wall Ill to hold the light IB against displacement. If desired, rubber tape or any equivalent may be applied to the sides of the light I6 and adjacent portions of the wall II) about the window frame so that the heated air will be caused to travel effectively between the lights I6' and II before escape at the opening or slit I1.

Ordinarily the light IS is not employed as shown in Figure 6. However, in extremely cold weather, the addition of the light I6' is desirable.

Interiorly of the casing of the ventilator I2, I may provide any suitable valve or damper 2I to enable the wall I0 or ventilator to be completely closed to the passage of air therethrough when `act to cause a flow of air through desired. This damper, as shown in Figure 8, may be pivotally mounted as at 22Vand normally is adapted for disposition at the angle shown inY Figure 6, but when closed to abut the stop strip 23 as shown in dotted lines in the same figure. A conventional latch means may be employed to secure the closure 2| in closed position, but which will enable it to close automatically through impingement with the air against the same in the event of backing of the vehicle, to prevent the passage of the colder outside air into the vehicle.

In-Figure 9 I show an alternative meansor manner for mounting the closure, damper, or valve 2|. Such valve in this form is designated 23 and has an enlarged roundedrbasal rib at 24 which is journaled in an open socket strip 25 so constructed and arranged that the valve 23 mayV interior of the vehicle and its other end communicating with the opening in the surface of the vehicle, in combination with a window at said surface, and a removable light spaced from the window having an opening therethrough leading to the outside atmosphere to enable discharging air to pass between the lightand window.

2. 'Ihe combination with a vehicle having a surface skin shaped to produce the smooth ow c of air thereover, and having an* opening communicating with the interior of the vehicleat a point where the air flowing over the surface will h act to cause a flow of air through the opening, of

a ventilator having one end opening into the interior of the vehicle and its other end communi- -l eating with the opening in the surfacek of the rock to and from the closed and open positions, v

respectively shown by full and dotted lines, and be automatically movable to the closed position upon backing of the vehicle, and being capableA of being latched'to open position by any conventional means.

As shown in Figures 1 and 7, the auxiliary glass or light I6 may have division strips 26 fastened to its inner surface adapted to rest on the light Il; as a result, the air emitted by tubes I6 will eifectively be divided into streams by the latter and into a less number and thinner streams between the lights il and I6', so that the heat rfrom the air discharging between the lights will be moreV evenly applied thereto for escaping at Y the slot or slit Il. V

vehicle, in combination with a Window at said surface,'and a'light spaced from the window to enable discharging air to pass between the light and window, said light having a slit therethrough adjacent its lower edge communicating with air. .f 3. The combination With-a vehicle having a surface skinV shaped to produce the smooth'flow ofv air thereover, and havingan opening communicating withV the interior of the vehicle at a point Where the air iiowing over the surface-:Will

act to cause a flow of air through the opening, of a ventilator having'one end opening into the interior of the vehicle and its `other end communieating with the opening in the surface ofthe vehicle, in, combination with a window at Vsaid surface,Y and a light spaced from the window to enable discharging air to pass between thelight and window, said light having a slit therethrough adjacent its lower edge communicating with the outside atmosphere for discharge of the air,thev Wall of the vehicle having said surface skin being provided with a'groove entered by one edgeof the light, and latch means to secure the light to said wall whenvthe said edge entered in said groove.Y t i the outside atmosphere for discharge of the` MARION G. MANN. A 

